Green drinks?

Try some v-8 or v-8 fusion, each 8 oz glass will give you the same as a full serving of veggies. I don't like regular V-8 but the spicy and the fusion is pretty good.

 

I'll admit that V8 is probably better than not getting your veggies at all. However, I prefer my veggies raw, instead of highly processed.

ltldslwmn - If you do some searching on "Slow Carb Diet", you'll see a way to eat that can be done on the road with a little preparation, and keeps you from getting the mid-day tiredness. I know, as I switched to it, and it has worked wonders for me in soooo many ways. I've also posted about it in other threads within the Drivers' Health Corner. If you have any questions about it, or how to implement it on the road, just ask. I've done it with a hotbox, and a cooler, and it worked fine, as long as you were willing to do some prep each day.

As far as the green drinks, they are a great supplement, but I would never use them as a replacement.

 

I'm a vegetarian and recently I kind of converted my husband into one ( not exactley by choice). We have a fridge, and we shop once a week # Sams club( that is the only convenient store in our way).  All the fruits we get, we keep them under the Bed. Mainly apples and bananas. We buy vegetables ( what ever we are in the mood for) and we eather eat them just like that dipped in hummus, sowercream, or incorporated in a  sandwich. ( letuce, cabbage, celery but even brocoli or caulieflower work if you have the patience).
I worked with a nutritionist for 4.1/2 years (@my last job). All the juices have preservatives if not even more. A natual juice, looses it's nutritional propreties in minutes ( even refrigerated), and on normal, natural conditions it would spoil in maximum 2 days. I'm sure they're better than soda and other drinks, they just are no "natural". 
As for the craveings... Probiotics ( orthobiorics). We use them and they are miricle workers. Also one of the first thing people notice is that the craveings dissapear. Here's a link with deffinition.       http://en.m.wikipedia.org/wiki/Probiotic